AWS A5.01M/A5.01 pdf free download

AWS A5.01M/A5.01 pdf free download.Welding and Brazing Consumables-Procurement of Filler Metals and Fluxes.
In production, the components of welding or brazing consumables shall be divided into discrete quantities so that satis- factory tests with a sample from that quantity will establish that the entire quantity meets specification requirements. These quantities, known by such terms as heats, lots, blends, batches and mixes, vary in size according to the manufac- turer. For identification purposes, each manufacturer assigns a unique designation to each quantity. This designation usu- ally consists of a series of numbers or letters, or combinations thereof, which will enable the manufacturer to determine the date and time (or shift) of manufacture, the raw materials used, and the details of the procedures used in producing the welding or brazing consumable. This designation stays with the welding or brazing consumable and can be used to identify the material later, in those cases in which identification is necessary. AWS A3.0M/A3.0, Standard Welding Terms and Definitions, provides the basis for terms and definitions used herein. However, the following terms and definitions are included below to accommodate usage specific to this document. 3.1 Dry Batch. The quantity of dry ingredients mixed at one time in one mixing vessel. NOTE: Liquid(s), such as binders, when added to a dry batch, produce a wet mix. A dry batch may be divided into homogeneous smaller quantities, in which case addition of the liquid(s) produces a corresponding number of smaller wet mixes. 3.2 Dry Blend. Two or more dry batches from which quantities of each are combined proportionately, then mixed in a mixing vessel to produce a larger quantity in which the ingredients are as uniformly dispersed as they would have been had the entire quantity been mixed together at one time in one large mixer. NOTE: A dry blend, as in the case of a dry batch, may be used singly or divided into smaller quantities, in which case addition of liquid(s) produces a corresponding number of smaller wet mixes. 3.3 Wet Mix. The combination of liquid(s) and a dry batch, dry blend, or a portion thereof, mixed at one time in one mixing vessel. 3.4 Heat. For fully metallic consumables, or the fully metallic rod, tube, or strip used to fabricate tubular cored or cov- ered electrodes and rods the following apply. The specific definition is dependent on the method of melting and refining of the metal: 3.4.1 The material obtained from one furnace melt, where slag-metal or gas-metal reactions occur in producing the specified alloy (e.g., open hearth, electric arc, basic oxygen, argon-oxygen processes). Mill splicing of coils from differ- ent heats is not permitted, and coils containing transition heats may not be classified in this manner. 3.4.2 An uninterrupted series of melts from one controlled batch of metals and alloying ingredients in one melting furnace under the same melting conditions, each melt conforming to the chemical composition range approved by the purchaser of the material (i.e,, the producer of the welding or brazing consumable) where significant chemical reactions do not occur in producing the specified alloy (e.g., induction melting in a controlled atmosphere or in a vacuum). 3.4.3 An uninterrupted series of remelts in one furnace under the same remelting conditions using one or more con- sumable electrodes produced from a single heat, each remelt conforming to the chemical composition range approved by the purchaser of the material (i.e., the producer of the welding or brazing consumable) in processes involving continuous melting and casting (e.g., consumable electrode remelt). 3.5 Controlled Chemical Composition 3.5.1 Covering or core ingredients consisting of one or more wet mixes, dry batches, or dry blends that are subjected to sufficient tests to assure that all within the lot are equivalent. These tests shall include chemical analysis, the results of which shall fall within the manufacturer’s acceptance limits. The identification of the test procedure and the results of the tests shall be recorded.AWS A5.01M/A5.01 pdf download.